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Merge pull request #1828 from spacejack/option-empty-string

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Fix select option to use empty string value, add tests.
This commit is contained in:
Isiah Meadows 2017-05-01 11:43:54 -04:00 • committed by GitHub
commit 8191f7894c
2 changed files with 42 additions and 1 deletions
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2
render/render.js
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@ -481,7 +481,7 @@ module.exports = function($window) {
//setting select[value] to same value while having select open blinks select dropdown in Chrome
if (vnode.tag === "select" && key === "value" && vnode.dom.value == value && vnode.dom === $doc.activeElement) return
//setting option[value] to same value while having select open blinks select dropdown in Chrome
if (vnode.tag === "option" && key === "value" && vnode.dom.value == value) return
if (vnode.tag === "option" && key === "value" && old != null && vnode.dom.value == value) return
// If you assign an input type that is not supported by IE 11 with an assignment expression, an error will occur.
if (vnode.tag === "input" && key === "type") {
element.setAttribute(key, value)

41
render/tests/test-input.js
View file

@ -90,6 +90,47 @@ o.spec("form inputs", function() {
o(select.dom.firstChild.value).equals("")
})
o("option value defaults to textContent unless explicitly set", function() {
var select = {tag: "select", children :[
{tag: "option", text: "aaa"}
]}
render(root, [select])
o(select.dom.firstChild.value).equals("aaa")
o(select.dom.value).equals("aaa")
//test that value changes when content changes
select = {tag: "select", children :[
{tag: "option", text: "bbb"}
]}
render(root, [select])
o(select.dom.firstChild.value).equals("bbb")
o(select.dom.value).equals("bbb")
//test that value can be set to "" in subsequent render
select = {tag: "select", children :[
{tag: "option", attrs: {value: ""}, text: "aaa"}
]}
render(root, [select])
o(select.dom.firstChild.value).equals("")
o(select.dom.value).equals("")
//test that value reverts to textContent when value omitted
select = {tag: "select", children :[
{tag: "option", text: "aaa"}
]}
render(root, [select])
o(select.dom.firstChild.value).equals("aaa")
o(select.dom.value).equals("aaa")
})
o("select yields invalid value without children", function() {
var select = {tag: "select", attrs: {value: "a"}}